Stove



2' Sheets-Sheet 1. C. C. FREE.

STOVE.

Patehted May 15, 1894.

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' 2 Sheets-Sheet 2.

(No Model.)

STOVE.

No. 519,705.. Patented May 15, 1894.

lm/ Macaw UNITED STATES PATENT OFFICE.

CHARLES C. FREE, OF COLORADO SPRINGS, COLORADO.

STOVE.

SPECIFICATION forming part of Letters Patent No. 519,705, dated May 15,1894. Application fi October 27, 1892. Serial No. 450,132- (No modeLl Toall whom it may concern.-

Be it known that I, CHARLES 0. FREE, of Colorado Springs, county of ElPaso, and State of Colorado, have invented certain new and usefulImprovements in Stoves, of which the following is a specification,reference being had to the accompanying drawings.

The object of my invention is to produce an improved stove, in which thegrate or bottom part may be vertically adjusted to provide for difierentquantities of fuel necessary to heat the stove. For example in stoves ofordinary construction it is necessary to fill the grate with anunnecessary quantity of fuel so as to raise the heat directly under thetop of the stove for certain purposes. After the work is completed thefuel must be allowed either to waste, or the grate must be dumped, allof which is inconvenient and expensive.

By my invention I provide improved and convenient means for increasingor diminishing the depth of the fire pot, so that an effective fire froma small quantity of coals may be made, or a deep fire for protracted usemay be had, as in ordinary stoves.

In the accompanying drawings, Figure 1 is a side elevation of my stove;Fig. 2 a central vertical section of the same. Fig. 3 is a front view.Fig. 4 is an inside view of the front wall of the stove; and Fig. 5 is atop plan view'with the top of the stove over the firepot and the feeddoor removed.

Referring to the figures on the drawings, 1 indicates a section of astove that is provided with a fire-pot composed of vertical, preferablyremovable walls 2. I

3 indicates a draft-door provided with upper and lower drafts 4 and 5.

6 indicates a lower draft slit in the front wall of the stove, and 7 anupper draft slit.

8 indicates curved channels in each of the end walls,,which retain andguide the bearing ends 9 of a grate-bar 10 which is preferably round topermit of its rotary movement in grate-bar supports 11. They are pivotedto levers 12 secured to a rock-bar 13. The

levers may be conveniently secured to the rock-bar by making the lattersquare, and providing square apertures 14 in the ends of the levers.

15 indicates a ratchet secured to the outer end of the rock-bar, and 16a pawl adapted to engage therewith and control the movement of therock-bar in one direction.

17 indicates a crank adapted to impart motion to the rock-bar. Upon thegrate-bar is secured a grate 18 of any suitable construction, butpreferably provided on three of its outer edges with notched ribs 19,and on the front edge with a smooth rib 20, which afiords a bearingsurface for a dumping lever 21 pivotally carried in one side of thefront wall of thestove, and provided with 'a counterweighted handle 22,which normally holds the inner end of it in the elevated position; andwhereby that end may be depressed against the front of the grate bylifting the handle from the outside.

The operation of my device is as follows: Suppose it to be desirable toadjust the grate to a particular height by turning the crank,

17, the rock-bar is rotated to impart motion .to the grate-bar supportswhile the grate-bar is guided smoothly and evenly in the curved channels8 and the grate is carried without tilting to the desired height, and isretained there by the engagement of the pawl with the ratchet on therock-bar. Afterward fuel is supplied by raising the feed-door 23 andemptying it into the chute as usual. Part of it of course falls into thefire-pot, the balance being spread evenly over the grate.

The operation of the dumping lever has already been described.

It will be observed that by the construction of the grate the smallestamount of fuel may be carried in it, and at the same time thepossibility of its obstructing the coal heaver is prevented by thesmooth edge which is provided on the side adjacent thereto. It shouldalso be observed that the walls of the fire-pot are without obstructionsof any kind, which might tend to interfere with the free movement of thegrate, or to collect soot and ashes and clog the draft in the stove.

I do not desire to limit myself to theexact details of constructionherein shown and despects varied without departing from the scope of myinvention.

What I claim is'=- 1. In a stove,'the combination with a fire dumpinglever held normally out of contact with the grate and adapted to dumpthe grate by pressing upon the edge thereof when the counter-weightedend of the lever is lifted, substantially as specified.

2. In a stove, the combination with the fire pot, and movable grateprovided with notched ribs on three sides and a smooth rib on theremaining side, of a dumping lever having one of its arms adapted tohave a bearing upon the smooth rib when the grate is being dumped,substantially as specified.

3. In a stove, the combination with a fire pot provided with curvedchannels in its ends, of a grate bar, grate barsupport and leverspivoted thereto, and fixedly secured to the rock bar, a crank,and pawland ratchet mechanism adapted to adjust the grate bar support, a gratepivoted to one side of its center upon the grate bar, arms adapted tosustain the heavier side of the grate, and a counterweighted dumpinglever held normally out of contact with the grate, and adapted to dumpthe same when the counter-weighted end of the lever is lifted,substantially as specified.

In testimony of all which I have hereunto subscribed my name.

CHARLES 0. FREE.

WVitnesses:

J. P. KEELER,

F. O. GRAVES.

